<style>
    body {
        border: #454545 solid 5px;
        border-radius: 20px;
        padding-left: 280px;
        padding-right: 10px;
        padding-top: 20px;
        padding-bottom: 20px;
        margin-top: 100px;
        margin-left: 50px;
        margin-right: 50px;
    }
</style>
<h1>你好啊！🤞</h1>
